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Branching fraction of τ^- → π^-K_s^0K_s^0(π^0)ν_τ decays

Lees, J. P. and Chao, D. S. and Cheng, C. H. and Echenard, B. and Flood, K. T. and Hitlin, D. G. and Ongmongkolkul, P. and Porter, F. C. and Rakitin, A. Y. (2012) Branching fraction of τ^- → π^-K_s^0K_s^0(π^0)ν_τ decays. Physical Review D, 86 (9). Art. No. 092013. ISSN 2470-0010. doi:10.1103/PhysRevD.86.092013. https://resolver.caltech.edu/CaltechAUTHORS:20130102-132420647

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Abstract

We present a study of τ^- → π^-K_S^0K_S^0(π^0)ν_τ and τ^- → K^-K_S^0K_S^0(π^0)ν_τ decays using a data set of 430 million τ lepton pairs, corresponding to an integrated luminosity of 468  fb^(-1), collected with the BABAR detector at the PEP-II asymmetric energy e^+e^- storage rings. We measure branching fractions of 2.31±0.04±0.08)×10^(-4) and (1.60±0.20±0.22)×10^(-5) for the τ^- → π^-K_S^0K_S^0ν_τ and τ^- → π^-K_S^0K_S^0π^0ν_τ decays, respectively. We find no evidence for τ^- → K^-K_S^0K^S^0ν_τ and τ^- → K^-K_S^0K_S^0π^0ν_τ decays and place upper limits on the branching fractions of 6.3×10^(-7) and 4.0×10^(-7) at the 90% confidence level.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevD.86.092013DOIArticle
http://link.aps.org/doi/10.1103/PhysRevD.86.092013PublisherArticle
http://prd.aps.org/abstract/PRD/v86/i9/e092013PublisherArticle
ORCID:
AuthorORCID
Cheng, C. H.0000-0002-8382-0447
Hitlin, D. G.0000-0003-4028-6982
Porter, F. C.0000-0003-1948-8889
Additional Information:© 2012 American Physical Society. Received 2 August 2012; published 26 November 2012. We are grateful for the extraordinary contributions of our PEP-II colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the U.S. Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat à l’Energie Atomique and Institut National de Physique Nucléaire et de Physique des Particules (France), the Bundesministerium für Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Ciencia e Innovaciόn (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie-Curie IEF program (European Union) and the A. P. Sloan Foundation (USA).
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Commissariat à l’Energie Atomique (CEA)UNSPECIFIED
Bundesministerium für Bildung und Forschung (BMBF)UNSPECIFIED
Istituto Nazionale di Fisica Nucleare (INFN)UNSPECIFIED
Stichting voor Fundamenteel Onderzoek der Materie (FOM)UNSPECIFIED
Research Council of NorwayUNSPECIFIED
Ministry of Education and Science of the Russian FederationUNSPECIFIED
Ministerio de Ciencia e Innovaciόn (MICINN)UNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Marie Curie FellowshipUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Issue or Number:9
Classification Code: PACS: 13.35.Dx, 14.60.Fg
DOI:10.1103/PhysRevD.86.092013
Record Number:CaltechAUTHORS:20130102-132420647
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130102-132420647
Official Citation:Branching fraction of τ-→π-Ks0Ks0(π0)ντ decays J. P. Lees et al. Published 26 November 2012 (9 pages) 092013
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36117
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:02 Jan 2013 22:04
Last Modified:09 Nov 2021 23:20

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